Note: State totals for 1800-1840 include population of the portion of the District of Columbia taken from Virginia (Fairfax County) in 1791 but retroceded to Virginia in 1846 (1800: 5,949; 1810: 8.852; 1820: 9.703; 1830: 9,573; 1840: 9,967). This area became Alexandria County in 1801; a portion was reported as Alexandria city independent of the county beginning in 1900; Alexandria County was renamed Arlington in 1920.